GW Instek GDS-2000A series User Manual User Manual
Page 149

CONFIGURATION
149
Event
Sets the number of events (1 ~ 65535)
passed after the trigger event, until the
real trigger timing.
Set to
Minimum
Sets the source trigger to the minimum
time.
When
(Pulse Width)
Sets the pulse width (10ns ~ 10s) and the triggering
condition.
>
Longer than =
Equal to
<
Shorter than ≠
Not equal to
Threshold
(Pulse Width)
Sets the amplitude threshold level for the pulse
widths.
Threshold
–XXV ~ +XXV, user-set level
Set to TTL
1.4V
Set to ECL
-1.3V
Set to 50%
Sets the threshold to 50%
Standard
(Video)
NTSC
National Television System
Committee
PAL
Phase Alternate by Line
SECAM
SEquential Couleur A Memoire
Polarity
(Pulse Width,
Video)
Positive polarity (triggered on the high
to low transition)
Negative polarity (triggered on the
low to high transition)
Polarity
(Pulse Runt)
Positive polarity (positive runt)
Negative polarity (negative runt)
Either (either negative or positive
runt)
Trigger On
Selects the trigger point in the video signal.